<span>The phosphorus cycle is a biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movement of phosphorus. Phosphorus mainly comes from soil and rock on the Earth and is recycled by living organisms</span>
B. the flu vaccine
It is the flu vaccine because flu vaccines can be produced to protect people from the flu virus.
Tapeworm............"....
